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train lenght vs curves
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[quote]QUOTE: <i>Originally posted by moparman48</i> <br /><br />Being a semi-veteran model railroader, I still learn new stuff every day. Can some one elaborate on the effects of mixing short cars with longer cars? My rolling stock represnt cars from the '40s to the '60s, so I have various lenghts. <br />[/quote] <br /> It's explained better and in more detail in John Armstrong's book [url="http://www.amazon.com/gp/product/0890242275/ref=sib_rdr_dp/102-1737474-6685766?%5Fencoding=UTF8&me=ATVPDKIKX0DER&no=283155&st=books&n=283155"]<b><u>Track Planning for Realistic Operation</u></b>[/url], but basically car length affects the overhang or the amount of swing the coupler makes around sharp curves. Problems can accrue if you run a 40' box car between two 87' flat cars with body mounted couplers. The long cars will swing out more than the short cars. You might have never notice a problem because some, if not most, manufacturers equip long rail cars with truck mounted couplers to eliminate this problem. <br /> It's not a problem with prototype railroads because the curves are so broad. We scale modelers usually don't have a scale 40 acres to turn a train.
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